Ukraine’s capital Kyiv came under a large-scale Russian drone and missile attack overnight into Saturday, just hours after Russia and Ukraine began a major prisoner exchange.

Ukraine’s capital came under a large-scale Russian drone and missile attack overnight and into early Saturday that left at least 15 people injured, according to Ukrainian officials. Explosions and machine gun fire were heard throughout Kyiv as many sought shelter in subway stations.

Ukraine's air force said that Russia had fired 14 ballistic missiles at targets across Ukraine overnight and launched 250 long-range drones, with Kyiv the main target. The strikes followed several days of Ukrainian drone strikes - some 800 attacks - on targets inside Russia, including the capital Moscow.